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AN & NPT Fittings & Adapters, Fuel Line Fittings, Hose Couplers & more

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AN & NPT Fittings & Adapters, Fuel Line Fittings, Hose Couplers & more

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the...

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the automotive fittings you need right here, including a wide range of AN, NPT, fuel line and hose fittings, along with adapters and reducers to go from one to another, and so much more. Our huge selection means you can assemble the complex custom plumbing system your competition vehicle needs, restore your classic car with period-accurate components, or just keep your daily driver running right. Take a look at our options for AN Hoses, to go along with your fittings.

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the automotive fittings you need right here, including a wide range of AN, NPT, fuel line and hose fittings, along with adapters and reducers to go from one to another, and so much more. Our huge selection means you can assemble the complex custom plumbing system your competition vehicle needs, restore your classic car with period-accurate components, or just keep your daily driver running right. Take a look at our options for AN Hoses, to go along with your fittings.

Top Brands


Starting now, you can shop from all the best brands of automotive fittings on the market, including Russell, Earl’s, Aeroquip, and Fragola, plus our dependable and budget-friendly Summit Racing brand.

Individual Parts

Results 1 - 24 of 24

Fittings, Gauge Adapters, Oil Pressure, Coolant Temperature, Billet Aluminum, Natural, Set of 6

Part Number: ICB-551156

4.83 out of 5 stars ( 6 )

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Gauge Adapters, Straight Fitting, Aluminum, Natural, 16mm x 1.5 Female Threads, Designed for Use with ICT LS Gen 4 Valley Pan Covers Only, Each

Part Number: ICB-551623

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Gauge Adapter, Straight, Aluminum, Natural, M12 x 1.5 Male Threads, 3/8 in. NPT Female Threads, Each

Part Number: ICB-551179L

4.0 out of 5 stars ( 7 )

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Gauge Adapter, Straight, Aluminum, Natural, M12 x 1.5 Male Threads, 1/8 in. NPT Female Threads, Each

Part Number: ICB-551159

5.0 out of 5 stars ( 2 )

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1/8" NPT Male to M16-1.5 Female Oil Pressure Sensor Adapter Fitting

Part Number: ICB-F125NPFM1615

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Coolant Temperature Sensor Adapter, Adapts 3/8 in. NPT Sensors to GM LS and LT Gen III/IV/V 28mm Engine Block Coolant Ports, Billet Aluminum, Each

Part Number: ICB-551782-375

5.0 out of 5 stars ( 1 )

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Gauge Adapters, Straight Fitting, Billet Aluminum, Natural, 16mm x 1.5 Female Threads, 1/8 in. NPT Female Threads, 1/8 in. NPT Female Threads, Kit

Part Number: ICB-551541

3.67 out of 5 stars ( 3 )

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Coolant Temperature Sensor Adapter, Adapts 1/8 in. NPT Sensors to GM LS and LT Gen III/IV/V 28mm Engine Block Coolant Ports, Billet Aluminum, Each

Part Number: ICB-551782-125

5.0 out of 5 stars ( 1 )

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Gauge Adapter, Straight, Aluminum, Natural, M16 x 1.5 Male Threads, 1/4 in. NPT Female Threads, Each

Part Number: ICB-551175

4.83 out of 5 stars ( 6 )

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Coolant Temperature Sensor Adapter, Adapts Chevy Small Block and Big Block 1/4 in. NPT Sensors to GM LS Engines, Billet Aluminum, Each

Part Number: ICB-551734

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Coolant Temperature Sensor Adapter, Adapts M12 x 1.5 Sensors to GM LS and LT Gen III/IV/V 28mm Engine Block Coolant Ports, Billet Aluminum, Each

Part Number: ICB-551782-M1215

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Oil Pressure Sensor Adapter, Adapts Factory BMW M12 x 1.5 Sensors to GM LS Engines, Billet Aluminum, Each

Part Number: ICB-551712-M1215

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Oil Pressure Sensor Gauge Adapter, Male M16-2.0, Female, 1/8-27 NPT, Each

Part Number: ICB-551142

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Gauge Adapter, Straight, Aluminum, Natural, M16 x 1.5 Male Threads, 1/8 in. NPT Female Threads, Each

Part Number: ICB-551172

4.0 out of 5 stars ( 2 )

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Oil Pressure Sensor Adapter, For Gen V LT Valley Pan, Fits ICT Billet 551168 and 551171 Part Numbers, Billet Aluminum, Each

Part Number: ICB-551166

5.0 out of 5 stars ( 2 )

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Gauge Adapters, Straight Fitting, Billet Aluminum, Natural, M12 x 1.5 Male Threads, 1/2 in. NPT Female Threads, Chevrolet, LS, Each

Part Number: ICB-551149

4.33 out of 5 stars ( 6 )

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Gauge Adapters, Oil Pressure Sensor Relocation Adapter Port, LT Gen V, Chevrolet, Each

Part Number: ICB-551942

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Gauge Adapters, Straight Fitting, Billet Aluminum, Natural, 16mm x 1.5 Female Threads, Oil Pressure Sensor Relocation, GM, LS Series V8 Engines, Each

Part Number: ICB-551534

4.8 out of 5 stars ( 10 )

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1/8" NPT Oil Pressure Sensor Adapter Port - For ICT Gen 4 LS Valley Pans

Part Number: ICB-551623-125

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Gauge Adapter, Straight, Aluminum, Natural, M12 x 1.5 Male Threads, 3/8 in. NPT Female Threads, Each

Part Number: ICB-551179

3.89 out of 5 stars ( 9 )

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Fitting and Adapters, Holley, Replacement, Plugs and Fittings, NPT to BSPT, Straight, Aluminum, Chrome, for 20-242 and 20-242BK Manifolds, Kit

Part Number: HLY-97-319

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Fitting and Adapters, Holley, Replacement, Plugs and Fittings, NPT to BSPT, Straight, Aluminum, Chrome, 3/4 in. NPT, for LT/LS Cooling Manifold, Kit

Part Number: HLY-97-177

4.5 out of 5 stars ( 2 )

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Heater Hose Adapters, Plug Fittings, Steel, Zinc, Set of 6

Part Number: HLY-97-365

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Fitting and Adapters, Holley, Replacement, Plugs and Fittings, NPT to BSPT, Straight, Aluminum, Chrome, for 20-240 and 20-240BK Manifolds, Kit

Part Number: HLY-97-301

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